Calistoga
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Calistoga, CA

Scenic vineyard and tree lines in a plantation in the Napa Valley in Calistoga, California
Scenic vineyard and tree lines in a plantation in the Napa Valley in Calistoga, California
The first month of the autumn, September, is still a tropical month in Calistoga, California, with average temperature varying between 88°F (31.1°C) and 50.2°F (10.1°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 88°F (31.1°C). In Calistoga, California, the average low-temperature is 50.2°F (10.1°C).

Rainfall

January through June, September through December are months with rainfall in Calistoga. September is the first month it typically rains in Calistoga. Throughout September, there are 1 rainfall days. In Calistoga, California, during the entire year, the rain falls for 63 days.

Daylight

In Calistoga, the average length of the day in September is 12.4h.

What is the temperature in September in Calistoga?

In September, in Calistoga, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 50.2°F (10.1°C).

When does it start to rain in Calistoga?

September is the first month it typically rains. Throughout September, there are 1 rainfall days.

How many hours of daylight does Calistoga have in September?

In Calistoga, the average length of the day in September is 12.4h.
Average temperature in September - Calistoga, CA
  • Average high temperature in September: 87.9°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (58.5°F).

  • Average low temperature in September: 50.2°F

The month with the highest average low temperature is July (52.5°F).
The coldest month (with the lowest average low temperature) is December (36.4°F).

Average rainfall days in September - Calistoga, CA
  • Average rainfall days in September: 1 days

The month with the highest number of rainy days is January (11 days).
Months with the lowest number of rainy days are July and August (0 days).

Average daylight in September - Calistoga, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).